.ivu-steps {
  margin-bottom: 15px;
}
.form-center {
  width: 660px;
  margin: 0 auto;
}
.menu-box {
  border: 1px solid #dcdee2;
  border-radius: 5px;
}
.menu-box .box-body {
  height: 500px;
  margin: 10px;
  overflow: auto;
}
.menu-box .box-body .ivu-tree ul li {
  margin: 0;
}

